Converting Dry to "Wet" Weight

[Ron Gibson]

I see these two specs all the time...

Weight incl. oil, gas, etc

Dry weight

Anyone know how to convert back and forth - IOW, how much weight does
the oil, gas and other fluids usually add (on the average).

I realize gas tanks have different capacities but if you know use a
typical tank with about 4.5 gallons.

I calculate (using regular unleaded at 6.23 pounds per gallon) that 4.5
gallons should add about 28 pounds but that does not seem to enough to
explain some of the differing weight specs I see.

I guess dry weight must mean no engine oil (of course), fork oil (?),
hydraulic line fluids (that can't be much) - Oh forgot - Water for
radiator would be a bit I guess. I've always had air cooled bikes.

[TroytheTroll]

Post by Ron Gibson
I see these two specs all the time...
Weight incl. oil, gas, etc
Dry weight
Anyone know how to convert back and forth - IOW, how much weight does
the oil, gas and other fluids usually add (on the average).

To convert a manufacturers dry weight to wet weight you add the weight of
oil, gas, antifreeze, 2 wheels and tires, the seat, sometimes the engine and
tranny, sometimes the swingarm, forks and frame. All depends on how much
lying a particular manufacturer is doing.

[Ron Gibson]

Post by TroytheTroll

Post by Ron Gibson
Anyone know how to convert back and forth - IOW, how much weight does
the oil, gas and other fluids usually add (on the average).

To convert a manufacturers dry weight to wet weight you add the weight of
oil, gas, antifreeze, 2 wheels and tires, the seat, sometimes the engine
and tranny, sometimes the swingarm, forks and frame. All depends on how
much lying a particular manufacturer is doing.

Hmmm...I get your drift...

[saddlebag]

Post by Ron Gibson

Post by TroytheTroll

Post by Ron Gibson
Anyone know how to convert back and forth - IOW, how much weight does
the oil, gas and other fluids usually add (on the average).

To convert a manufacturers dry weight to wet weight you add the weight of
oil, gas, antifreeze, 2 wheels and tires, the seat, sometimes the engine
and tranny, sometimes the swingarm, forks and frame. All depends on how
much lying a particular manufacturer is doing.

Hmmm...I get your drift...

Euro bikes tend to be honest and open about the figures. It only
makes sense since the truth will eventually come out in the better
bike mag reviews anyway. For whatever reason, the Japs always quote a
fanciful number of their liking and call it dry weight. I read
somewhere recently that Honda had started quoting the actual wet
weight of their new CBR, but visiting the site I could find no mention
on it.

[~kurt]

Post by Ron Gibson
Hmmm...I get your drift...

Wet weight may or may not be with fuel. Usually, I think it is without
fuel. Most magazines will at least list their definition of weight.

I seem to remember many OEM tires are specially made to be lighter just
to get the lower weights in the ads.

- Kurt

[Albrecht via MotorcycleKB.com]

Post by Ron Gibson
Dry weight

Don't forget the battery. The dry weight doesn't include the battery.

[Ron Gibson]

Post by Albrecht via MotorcycleKB.com

Post by Ron Gibson
Dry weight

Don't forget the battery. The dry weight doesn't include the battery.

That occurred to me late last night and those little buggers are pretty
heavy. Adding fuel, oil, battery and water is beginning to sound about
right.

[TroytheTroll]

Post by Ron Gibson

Post by Albrecht via MotorcycleKB.com

Post by Ron Gibson
Dry weight

Don't forget the battery. The dry weight doesn't include the battery.

That occurred to me late last night and those little buggers are pretty
heavy. Adding fuel, oil, battery and water is beginning to sound about
right.

Depends on who is doing the lying.

[Brutus]

Post by TroytheTroll

Post by Ron Gibson

Post by Albrecht via MotorcycleKB.com

Post by Ron Gibson
Dry weight

Don't forget the battery. The dry weight doesn't include the battery.

That occurred to me late last night and those little buggers are pretty
heavy. Adding fuel, oil, battery and water is beginning to sound about
right.

Depends on who is doing the lying.

In my Ducati owners manual it lists the weights as:

Dry weight in riding order without fuel-- 188 kg
In running order without fuel, fluids or battery--173 kg

So 15 kg for fluids and battery which might even include shock and fork fluids etc...

BTW these numbers closely match published # in some of the mags, unlike some other manufacturers :-)

[Honda]

Post by Ron Gibson
I see these two specs all the time...
Weight incl. oil, gas, etc
Dry weight
Anyone know how to convert back and forth - IOW, how much weight does
the oil, gas and other fluids usually add (on the average).

Who cares?
You can't do anything about it.